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Coxa profunda more common in women’s hips
Coxa profunda is not a necessary radiographic measurement for patients with pincer-type femoroacetabular impingement, although it is more commonly found in women than men, according results of this study.
Researchers conducted a retrospective analysis of 157 hips to find the incidence of coxa profunda in four types of hips – hips with acetabular dysplasia, femoroacetabular impingement (FAI), symptomatic residual Legg-Calvé-Perthes deformities, and asymptomatic hips.
“Coxa profunda was present when the floor of the acetabular fossa touched or was medial to the ilioischial line,” the authors wrote.
The researchers examined similarities between coxa profunda and hip disorder diagnosis, lateral center-edge angle, acetabular inclination, patient age and gender. They found coxa profunda in 55% of the hips. Patients with acetabular dysplasia or residual Legg-Calvé-Perthes deformities showed less incidences of coxa profunda at 41% and 31%. Coxa profunda was found in 76% of asymptomatic hips and 64% of hips with FAI. In the study, 70% of women had coxa profunda compared to 24% of men. Researchers noted acetabular over coverage in 22% of hips with coxa profunda.
Disclosure: One of the authors (Clohisy) is a consultant for Biomet and receives grant funding from Zimmer and Wright Medical Technologies.